# SDR SB07104

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 9, 2007
- Submitted: December 10, 2007
- Operation: Air carrier
- Aircraft: [N441US](https://openairdocs.org/aircraft/N441US), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24812
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Indicator
- Part number: 2061141
- Part serial: 685
- Condition: Faulty
- Location: Cockpit
- Part time: 3,336 hours, 2,190 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SB07104

## Discrepancy

PIT FLT 1512 - ON APPROACH TO PIT, AS CREW SELECTED FLAPS PAST 5 UNITS, A SPLIT FLAPS CONDITION OCCURRED AND THE FLAPS STOPPED MOVING.  CREW RETURNED FLAP LEVER TO 5 UNITS AND FLAPS CAME BACK TO A SYMMETRICAL POSITION.  FLIGHT LANDED WITHOUT FURTHER INCIDENT AT 5 UNITS.  AN EMERGENCY WAS DECLARED.  MAINTENANCE REMOVED AND REPLACED THE FLAP POSITION INDICATOR PER MM 27-58-41-4.  OPERATIONAL CHECK NORMAL.  ALSO, REMOVED AND REPLACED A WORN RIGHT-HAND INBOARD FOREFLAP AND TOGGLE ASSEMBLY.  OPERATIONAL CHECK OF FLAPS NORMAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.